multiply (2t-7)(2t+7)
Would the answer be 4t^2-28t-49?
or are the signs wrong???
No, the +14t cancels the -14t, leaving
4t^2 - 49
Pay attention to those + and - signs...
Would the answer be 4t^2-28t-49?
or are the signs wrong???
4t^2 - 49
Pay attention to those + and - signs...